Another Eureka moment with Krug...

I love this point (made in the Forward by Roger Black):

"...while these conventions may change, there is one constant that never changes: human nature. As radical and disruptive a social and commercial force as the Internet has been, it has not caused a noticeable mutation in the human species." (p. xiii).

Simple, yet something that all too often gets left at the way side in web development.